The sponging mouthparts consist of a fleshy labium, at the distal end of which are large, sponge-like organs called the labella (singular, labellum).

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The sponging mouthparts consist of a fleshy labium, at the distal end of which are large, sponge-like organs called the labella (singular, labellum). The labella consist of many grooves, called pseudotrachea, which sop up liquids much like a sponge does.

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Photo credit: © Javier Torrent, VW PICS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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